Southwest Valentines Day sale – Tix as low as $39 each way Southwest announced a 72-hour sale offering one-way flights for only $39. Book by Thursday to take advantage of the deal! you might also like...5 Day Travel Itinerary: Washington DCGrand Opening Special: 25% Off Reservations At The Larkspur HotelLow Airfares From SFO On TravelocityJetsetter Deals - Feb 8 Twitter Facebook Del.icio.us Digg StumbleUpon Google